Low
S.31 on Heatline Compact 24

Your boiler is currently set to only provide hot water and is ignoring requests for central heating.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

"Hot water only" mode

From this model's manual
Verified against the Heatline Capriz Plus installation & service manual, page 26.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your external timer or programmer to see if it is currently set to 'Hot Water Only' or 'Summer Mode'.Ensure your room thermostat or smart controller is set to a temperature higher than the current room temperature.Adjust the boiler's internal winter/summer settings via the control panel to enable heating mode.

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